The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 17, 2015
Filed:
May. 19, 2008
Satoru Shintani, Hirakata, JP;
Shigeru Yamamoto, Hirakata, JP;
Kazuyuki Suzuki, Hirakata, JP;
Takeshi Takaura, Minoo, JP;
Tomohiro Nakagawa, Hirakata, JP;
Satoru Shintani, Hirakata, JP;
Shigeru Yamamoto, Hirakata, JP;
Kazuyuki Suzuki, Hirakata, JP;
Takeshi Takaura, Minoo, JP;
Tomohiro Nakagawa, Hirakata, JP;
Komatsu Ltd., Tokyo, JP;
Abstract
A work vehicle is provided with an engine, a traveling device driven by driving force from the engine to cause the work vehicle to travel, a first hydraulic pump driven by the driving force from the engine to discharge hydraulic oil, and a cooling device having a cooling fan driven by the hydraulic oil supplied by the first hydraulic pump to cool the engine, and a control unit. The control unit performs a normal cooling control in which an upper limit fan speed is determined based on an engine speed, and a cooling suppression control in which the upper limit fan speed determined based on the engine speed is suppressed to be less than the upper limit fan speed during the normal cooling control when a predetermined operation required to increase the engine speed is performed.